WO2023064241A1 - Mélange de pyréthroïdes et de milbémycines et ses utilisations - Google Patents

Mélange de pyréthroïdes et de milbémycines et ses utilisations Download PDF

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Publication number
WO2023064241A1
WO2023064241A1 PCT/US2022/046227 US2022046227W WO2023064241A1 WO 2023064241 A1 WO2023064241 A1 WO 2023064241A1 US 2022046227 W US2022046227 W US 2022046227W WO 2023064241 A1 WO2023064241 A1 WO 2023064241A1
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Prior art keywords
pyrethroids
moxidectin
mixture
ratio
mosquito
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PCT/US2022/046227
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English (en)
Inventor
Jason Clark
Banugopan KESAVARAJU
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Valent Biosciences Llc
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Publication of WO2023064241A1 publication Critical patent/WO2023064241A1/fr
Priority to CONC2024/0005108A priority Critical patent/CO2024005108A2/es

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/14—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings
    • A01N43/16—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom six-membered rings with oxygen as the ring hetero atom
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
    • A01N31/08—Oxygen or sulfur directly attached to an aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P7/00—Arthropodicides
    • A01P7/04—Insecticides

Definitions

  • the present invention is directed to a pesticidal mixture comprising one or more milbemycins and one or more pyrethroids.
  • the present invention is further directed to a method of controlling pests comprising applying a mixture of the present invention to an area in need of pest control.
  • Arthropods such as mosquitoes
  • Arthropods are often a nuisance to humans and other animals.
  • Arthropods can also be vectors for diseases. Due to the nuisance and public health issues, humans strive to control arthropod populations near their own environments.
  • One way of controlling arthropods is by using pyrethroids.
  • Pyrethroids are axonic excitotoxins which prevent the closure of the voltage-gated sodium channels in the axonal membranes of arthropods.
  • the toxins work by paralyzing the organism.
  • pyrethroids are effective arthropod adulticides, a major problem is that populations of arthropods are developing resistance to them. Pyrethroid resistance, caused either by specific detoxification enzymes or an altered target site mechanism (knockdown resistance (“KDR”)-type mutations in the sodium channels), has been reported on most continents in the majority of medically important mosquito species. If resistance continues to develop and spread at the current rate, it may render such insecticides ineffective in their current form. Such a scenario would have potentially devastating consequences in public health terms because there are as yet no obvious alternatives to many of the pyrethroids. [005] Resistance is a complex phenomenon arising from exposure to the same or a similar insecticide class over a period of multiple insect generations.
  • Resistance develops due to extinction of susceptible individuals within the population and survival with subsequent reproduction of individuals who are inherently “immune” to the effects of the insecticide. Resistance can be due to multiple factors that include selection of target site mutations, detoxification enzymes and decreased cuticular penetration. Resistance may arise in naive populations that have been previously identified as insecticide susceptible or those that have been exposed to insecticides of another or similar class or mode of action. Cross resistance can occur and, in addition to physiological resistance, behavioral resistance mechanisms may also be present. The end result of resistance to current control measures is that available insecticides are often inadequate to provide the mortality rates necessary to achieve sufficient levels of arthropod control at environmentally acceptable application rates. Because pyrethroid resistant insects pose a significant human health risk, there is a need in the art for a safe and effective arthropod insecticide.
  • Milbemycins are macrocyclic lactones that are generated as fermentation products of Streptomyces .
  • Natural milbemycins include milbemycin A3, milbemycin A4, milbemycin D, milbemycin oxime A3, milbemycin oxime A4 and nemadectin.
  • Synthetic milbemycins include moxidectin. Natural milbemycins and synthetic derivatives thereof are known to control helminths and insects.
  • mosquitoes One type of arthropod that is of major health concern is mosquitoes.
  • the three major genera of mosquitoes which transmit diseases are Anopheles, Culex and Aedes. Therefore, there is a need to control mosquitoes to reduce disease transmission.
  • Different insecticides can attack at different stage of the insects’ development. However, it is the mosquito in the adult stage that transmits viruses and parasites which cause disease. Control of larval stages is a first line of defense for suppression of mosquito populations, but without the capacity to control adult mosquitoes the ability to manage disease can be severely compromised in many settings.
  • US Patent No. 9,826,742 is directed to pesticidal mixtures of a pyrethroid and fatty acids at a 1 : 1 : 1 ratio of octanoic acid, nonanoic acid and decanoic acid. While this mixture is successful in controlling A. aegypti known to be resistant to pyrethroids alone, there is no guarantee that A. aegypti will not become resistant to such mixtures in the future.
  • the present invention is directed to a pesticidal mixture comprising one or more milbemycins and one or more pyrethroids.
  • the present invention is directed to a pesticidal mixture comprising moxidectin and one or more pyrethroids selected from the group consisting of permethrin and pyrethrum and optionally, C8, 9, 10 fatty acids.
  • the present invention is directed to a method of controlling a mosquito comprising applying an effective amount of a mixture of the present invention to the mosquito or an area in need of mosquito control.
  • the present invention is directed to a method of controlling a mosquito comprising applying sequentially or concurrently an effective amount of moxidectin and an effective amount of one or more pyrethroids selected from permethrin and pyrethrum to the mosquito or an area in need of mosquito control.
  • Applicant discovered that a mixture of one or more milbemycins and one or more pyrethroids is highly effective at controlling pests, especially mosquitoes.
  • Application of the mixtures of the present invention provide a high mortality rate to arthropods including strains that are known to be resistant to pyrethroids or milbemycins alone.
  • the present invention is directed to a pesticidal mixture comprising one or more pyrethroids and one or more milbemycins.
  • the present invention is directed to a pesticidal mixture comprising moxidectin and one or more pyrethroids selected from the group consisting of permethrin and pyrethrum and optionally, C8, 9, 10 fatty acids.
  • milbemycins includes compounds of formula (I):
  • R3 is selected from the group consisting of -CH3, -CH2-CH3, (Z)-CH(CH3)2 and (Z)-
  • the one or more milbemycins are selected from the group consisting of those compounds of Table 1, below.
  • the one or more milbemycins are selected from the group consisting of milbemycin A3, milbemycin A4, milbemycin D, milbemycin oxime A3, milbemycin oxime A4, nemadectin and moxidectin.
  • the milbemycin is moxidectin.
  • pyrethroid includes compounds of formula (II), (III), (IV) and (V): wherein:
  • Ri is selected from the group consisting of CH3, CF3, Br, Cl and
  • R2 IS selected from the group consisting of H, CH3, Br and Cl;
  • R 3 IS selected from the group consisting of
  • R4 is selected from the group consisting of
  • Ri is selected from the group consisting wherein:
  • Ri is C or Si
  • R2 is O or CH2
  • R3 is H or F.
  • the one or more pyrethroids are selected from the group consisting of those compounds of Tables 2-5, below.
  • the one or more pyrethroids are selected from the group consisting of allethrin, bifenthrin, beta-cyfluthrin, cyfluthrin, cypermethrin, d,d,trans- cyphenothrin, cyphenothrin, deltamethrin, esfenvalerate, etofenprox, fenpropathrin, fenvalerate, flucythrinate, tau-fluvalinate, lambda-cyhalothrin, gamma-cyhalothrin, imiprothrin, metofluthrin, IRS cis-permethrin, permethrin, prallethrin, pyrethrum, resmethrin, silafluofen, sumithrin (d- phenothrin), tefluthrin, tetramethrin,
  • the one or more pyrethroids is fenpropathrin. In another embodiment, the one or more pyrethroids does not include pyrethrum. In another embodiment, the mixtures of the present invention are free of gamma cyhalothrin or bifenthrin.
  • pyrethrum refers to a composition that includes cinerin including cinerin I and cinerin II and pyrethrin including pyrethrin I and pyrethrin II.
  • C8, 9, 10 fatty acids refers to a mixture of octanoic, nonanoic and decanoic fatty acids.
  • Octanoic, or caprylic acid is an eight-carbon saturated fatty acid.
  • Nonanoic acid or pelargonic acid
  • Decanoic acid, or capric acid is a ten-carbon saturated fatty acid.
  • the C8, 9, 10 fatty acids have an equal amount of each fatty acid by weight percentage (about 33.3 % each).
  • the ratio of one or more pyrethroids to one or more milbemycins is from about 1000:1 to about 1:1000, preferably from about 100:1 to about 1:100, more preferably from about 50:1 to 1:50, even more preferably from about 20:1 to about 1:20, yet even more preferably from about 10: 1 to about 1:10, yet even more preferably from about 5:1 to about 1:5, yet even more preferably from about 5 : 1 to about 1:1. and yet even more preferably from about 3.3 : 1 to about 1 : 1 and yet even more preferably at about 3.3:1, 1.7:1 or 1:1.
  • the ratio of one or more pyrethroids to one or more milbemycins is based on a weight ratio.
  • the ratio of one or more pyrethroids to one or more milbemycins is from about 1000:1 to about 1.1:1, preferably from about 100:1 to about 1.1:1, more preferably from about 50: 1 to about 1.1:1, even more preferably from about 20: 1 to about 1.1:1, yet even more preferably from about 10:1 to about 1.1:1, yet even more preferably from about 5:1 to about 1.1:1, yet even more preferably from about 3.3:1 to about 1.1:1 and yet even more preferably from about 3.3 : 1 to about 1.7:1 or from about 1.7: 1 to about 1.1:1.
  • the ratio of one or more pyrethroids to C8, 9, 10 fatty acids is from about 1000:1 to about 1:1000, preferably from about 100:1 to about 1:100, more preferably from about 50:1 to 1:50, even more preferably from about 20:1 to about 1:20, yet even more preferably from about 10:1 to about 1:10, yet even more preferably from about 5 : 1 to about 1:5, yet even more preferably from about 2: 1 to about 1 :2 and yet even more preferably from about 1.3 : 1 to about 1:1.3.
  • the ratio of one or more pyrethroids to C8, 9, 10 fatty acids is from about 1000:1 to about 1.1:1, preferably from about 100:1 to about 1.1:1, more preferably from about 50: 1 to about 1.1:1, even more preferably from about 20: 1 to about 1.1:1, yet even more preferably from about 10:1 to about 1.1:1, yet even more preferably from about 5:1 to about 1.1:1 and yet even more preferably from about 5 : 1 to about 4:1.
  • the ratio of one or more pyrethroids to C8, 9, 10 fatty acids is from about 1 : 1.1 to about 1 : 1000, preferably from about 1:1.1 to about 1 : 100, more preferably from about 1 : 1.1 to about 1:50, even more preferably from about 1 : 1.1 to about 1 :20, yet even more preferably from about 1 : 1.1 to about 1:10, yet even more preferably from about 1:1.1 to about 1 :5, yet even more preferably from about 1 : 1.1 to about 1 :2 and yet even more preferably from about 1 : 1.1 to about 1:1.3.
  • the ratio of one or more pyrethroids to C8, 9, 10 fatty acids is or about 1:1.
  • the ratio of one or more pyrethroids to C8, 9, 10 fatty acids is based on a weight ratio.
  • the ratio of one or more milbemycins to C8, 9, 10 fatty acids is from about 1000:1 to about 1:1000, preferably from about 100:1 to about 1:100, more preferably from about 50:1 to 1:50, even more preferably from about 20:1 to about 1:20, yet even more preferably from about 10:1 to about 1:10, yet even more preferably from about 5: 1 to about 1:5, yet even more preferably from about 2: 1 to about 1 :2 and yet even more preferably from about 1.3 : 1 to about 1:1.3.
  • the ratio of one or more milbemycins to C8, 9, 10 fatty acids is from about 1000:1 to about 1.1:1, preferably from about 100:1 to about 1.1:1, more preferably from about 50: 1 to about 1.1:1, even more preferably from about 20: 1 to about 1.1:1, yet even more preferably from about 10:1 to about 1.1:1, yet even more preferably from about 5:1 to about 1.1:1, yet even more preferably from about 2: 1 to about 1.1:1 and yet even more preferably from about 1.5:1 to about 1.1:1.
  • the ratio of one or more milbemcyins to C8, 9, 10 fatty acids is from about 1 : 1.1 to about 1 : 1000, preferably from about 1:1.1 to about 1 : 100, more preferably from about 1 : 1.1 to about 1:50, even more preferably from about 1 : 1.1 to about 1 :20, yet even more preferably from about 1 : 1.1 to about 1:10, yet even more preferably from about 1:1.1 to about 1 :5, yet even more preferably from about 1 : 1.1 to about 1 :2 and yet even more preferably from about 1:1.1 to about 1:1.3.
  • the ratio of one or more milbemycins to C8, 9, 10 fatty acids is about 1.5:1.
  • the ratio of one or more milbemycins to C8, 9, 10 fatty acids is based on a weight ratio.
  • the ratio of one or more pyrethroids to one or more milbemycins to C8, 9, 10 fatty acids is from about 1000: 1 : 1 to about 1 : 1 : 1000 or from about 1000:1:1 to about 1:1000:1 or from about 1:1000:1 to about 1:1:1000 or from about 1000:1000:1 to about 1:1000:1000 or from about 1000:1000:1 to about 1000:1:1000 or from about
  • 1000: 1 : 1000 to about 1 : 1000: 1000 preferably from about 100: 1 : 1 to about 1 : 1 : 100 or from about 100:1:1 to about 1:100:1 or from about 1:100:1 to about 1:1:100 or from about 100:100:1 to about 1 : 100 : 100 or from about 100:100:1 to about 100 : 1 : 100 or from about 100 : 1 : 100 to about 1 : 100, more preferably from about 50:1:1 to about 1 : 1 :50 or from about 50:1:1 to about
  • the ratio of one or more pyrethroids to one or more milbemycins to C8, 9, 10 fatty acids is from about from about 5 : 1.5 : 1 to about 2.5 : 1.5 : 1.
  • the ratio of one or more pyrethroids to one or more milbemycins to C8, 9, 10 fatty acids is based on a weight ratio.
  • the present invention is directed to a pesticidal mixture comprising moxidectin and permethrin preferably at a weight ratio of about 1 :3.3 moxidectin to permethrin.
  • the present invention is directed to a pesticidal mixture comprising moxidectin and pyrethrum, preferably at a weight ratio of about 1:1.7 moxidectin to pyrethrum.
  • the present invention is directed to a pesticidal mixture comprising moxidectin and pyrethrum, preferably at a weight ratio of about 1 : 1 moxidectin to pyrethrum.
  • the one or more milbemycins of the present invention may exist in a composition at an effective amount.
  • an effective amount of one or more pyrethroids is a concentration of from about 0.1% to about 50% w/w, preferably from about 0.1% to about 10% w/w, even more preferably from about 0.1% to about 5% w/w, yet even more preferably from about 1% to about 2.5% w/w and yet even more preferably at about 0.5%, 1.5% w/w or 2.5% w/w.
  • the one or more pyrethroids of the present invention may exist in a composition at an effective amount.
  • an effective amount of one or more pyrethroids is a concentration of from about 0.1% to about 50% w/w, preferably from about 0.1% to about 10% w/w, even more preferably from about 0.1% to about 5% w/w, yet even more preferably from about 2.5% to about 5% w/w and yet even more preferably at about 0.5%, 2.5% or 5.0% w/w.
  • the C8, 9, 10 fatty acids of the present invention may exist in a composition at an effective amount.
  • an effective amount of the C8, 9, 10 fatty acids is a concentration of from about 0.1% to about 50% w/w, preferably from about 0.1% to about 10% w/w, even more preferably from about 0.1% to about 10% w/w, yet even more preferably from about 0.1% to about 5% w/w and yet even more preferably at about 1.0% w/w.
  • the present invention is directed to a method of controlling a pest comprising applying an effective amount of the mixtures of the present invention to the pest or an area in need of pest control.
  • the present invention is directed to a method of controlling a mosquito comprising applying sequentially or concurrently an effective amount of moxidectin and an effective amount of one or more pyrethroids selected from permethrin and pyrethrum to the mosquito or an area in need of mosquito control.
  • the mixtures of the present invention can be applied by any convenient means. Those skilled in the art are familiar with the modes of application including but not limited to, spraying, brushing, soaking, granule application, pressurized liquids (aerosols), fogging, bait and/or sidedressing. Spraying includes space sprays. Space sprays include aerosols and thermal fog spray. Applying the mixtures of the present invention to the pest include incorporating the mixtures of the present invention into a composition that may be ingested by the pest.
  • to control a pest or “controlling” pest(s) refers to killing, incapacitating, repelling, or otherwise decreasing the negative impact of the pest on plants or animals to a level that is desirable to the grower, applicator or user.
  • an area in need of pest control refers to any area that the pest is present during any life stage.
  • An area in need of pest control includes, but is not limited to: a) the plants that the pest is living on and/or the surrounding soil; b) an area where plants are grown, harvested, or in gardens, fields, greenhouses; c) indoor areas of human habitation such as residential buildings and commercial buildings including single family dwellings, hotels, daycares, libraries, multi-family residences, jails, hostels, wash rooms, hallways, including hotels, and hospitals, or transportation vehicles; d) outdoor areas around human habitation including areas near mosquito development sites and various indoor surfaces and structures, such as furniture including beds and furnishings including books, etc; and e) fabrics including tents, bed nets, clothing and the like.
  • Pests that may be controlled by methods of the present invention include, but are not limited to, arthropods.
  • Arthropods include insects, centipedes, millipedes and arachnids.
  • the arthropods controlled are resistant to pyrethroids or milbemycins.
  • the arthropods are insects.
  • the insect is a mosquito.
  • “mosquito” refers to insects that belong to the Family Culicidae.
  • Example Subfamilies of mosquitoes include Anophelinae and Culicinae.
  • Example Genera of mosquitoes include Anopheles, Culex, Aedes, Ochlerotatus, Psorophora, Culiseta, Coquillettidia and Mansonia.
  • Example species of mosquitoes include Aedes aegypti, Aedes albopictus, Aedes dorsalis, Ochlerotatus nigromaculis (also known as Aedes nigromaculis), Ochlerotatus vexans (also known as Aedes vexans), Ochlerotatus mergeans (also known as Aedes mergeans), Ochlerotatus melanimon (also known as Aedes melanimon), Ochlerotatus taeniorhynchus (also known as Aedes taeniorhynchus), Aedes triseriatus, Aedes, sierrensis, Aedes furcifer, Anopheles gambiae including Mopti and Savannah subspecies
  • the mosquito is of a genera selected from the group consisting of Culex, Aedes, Anopheles and a combination thereof. In an even more preferred embodiment, the mosquito is of a genera selected from the group consisting of Culex, Aedes and a combination thereof.
  • the mosquito is selected from the group consisting of Aedes aegypti, Culex quinquefasciatus, Anopheles quadrimaculatus and a combination thereof.
  • the mosquito is Aedes aegypti or Culex quinquefasciatus .
  • the mixtures of the present invention provide initial arthropod control. In another embodiment, the mixtures of the present invention provide residual arthropod control.
  • the one or more milbemycins may be applied at a rate of from about 0.01 to about 100 grams per hectare (“g/HA”), preferably from about 0.1 to about 100 g/HA, more preferably from about 0.1 to about 10 g/HA, even more preferably from about 0.1 to about 5 g/HA, even more preferably from about 0.1 to about 2 g/HA, yet even more preferably from about 0.5 to about 2 g/HA, yet even more preferably from about 0.75 to about 1.5 g/HA and yet even more preferably at about 1 g/HA.
  • g/HA grams per hectare
  • the one or more pyrethroids may be applied at a rate of from about 0.01 to about 100 grams per hectare (“g/HA”), preferably from about 0.1 to about 100 g/HA, more preferably from about 0.1 to about 10 g/HA, even more preferably from about 0.1 to about 5 g/HA, even more preferably from about 1 to about 5 g/HA, yet even more preferably from about 1 to about 4 g/HA, yet even more preferably from about 2 to about 3 g/HA and yet even more preferably at about 2.68 g/HA.
  • g/HA grams per hectare
  • the C8, 9, 10 fatty acids may be applied at a rate of from about 0.01 to about 10 grams per hectare (“g/HA”), preferably from about 0.01 to about 1 g/HA, more preferably from about 0.1 to about 1 g/HA, even more preferably from about 0.4 to about 0.9 g/HA, even more preferably from about 0.5 to about 0.8 g/HA, yet even more preferably from about 0.6 to about 0.7 g/HA, yet even more preferably at about 0.67 g/HA.
  • g/HA grams per hectare
  • composition refers to one or more active ingredients in a carrier.
  • the carrier may be a liquid, a semi-solid, a solid or a gas and may contain additional ingredients.
  • a bait is a suitable carrier for the present invention.
  • the term “effective amount” means the amount of the mixture that will control the target pest.
  • the “effective amount” will vary depending on the mixture concentration, the type of pest(s) being treated, the severity of the pest infestation, the result desired, and the life stage of the pest during treatment, among other factors. Thus, it is not always possible to specify an exact “effective amount.” However, an appropriate “effective amount” in any individual case may be determined by one of ordinary skill in the art.
  • Example 1 Control of Culex quinquefasciatus by a mixture of pyrethrum or permethrin and moxidectin
  • ECE A + B - (AB/100), wherein ECE is the expected combined efficacy and in which A and B are the percent control given by the single active ingredients. If the ratio between the OCE of the mixture and the ECE of the mixture is greater than 1, then greater than expected interactions are present in the mixture. (Gisi, Synergistic Interaction of Fungicides in Mixtures, The American Phytopathological Society, 86: 11, 1273-1279,1996). Percent mortality was recorded at 15 minutes (“Min”), 1 hour (“Hr”), 24 hours and 48 hours. Results can be found in Table 6, below.
  • C. quinquefasciatus known to be resistant to permethrin 5% permethrin provided from 35% to 96.25% control, 2.5% pyrethrum provided from 41.25% to 83.75% control and 1.5% moxidectin provided from 0% to 68.75% control.
  • This control is enhanced when moxidectin is mixed with either permethrin or pyrethrum.
  • the mixture of 5% permethrin and 1.5% moxidectin or the mixture of 2.5% pyrethrum and 1.5% moxidectin provided an unexpected level of control of C.
  • a mixture of pyrethrum and moxidectin provided an OCE:ECE ratio of 1.1 at 15 minutes and 1.2 at 1 hour on permethrin susceptible C. quinquefasciatus and a mixture of pyrethrum and moxidectin provided and OCE:ECE ratio of E l at 1 hour, 1.7 at 24 hours and 1.9 at 48 hours on permethrin resistant C. quinquefasciatus.

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Abstract

La présente invention concerne un mélange pesticide comprenant une ou plusieurs milbémycines et un ou plusieurs pyréthroïdes. La présente invention concerne en outre un procédé de lutte contre les organismes nuisibles comprenant l'application d'un mélange de la présente invention sur une zone nécessitant une lutte contre les organismes nuisibles.
PCT/US2022/046227 2021-10-11 2022-10-11 Mélange de pyréthroïdes et de milbémycines et ses utilisations WO2023064241A1 (fr)

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Citations (5)

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US20050137244A1 (en) * 2003-12-17 2005-06-23 Albert Boeckh Topical formulations comprising 1-N-arylpyrazole derivatives and amitraz
US20110144166A1 (en) * 2002-09-12 2011-06-16 Ian Cottrell High concentration topical insecticides containing pyrethroids
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WO2021041301A1 (fr) * 2019-08-24 2021-03-04 Flagship Pioneering Innovations Vi, Llc Modification de paquets de messagerie végétale avec des lipides chargés

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US20050137244A1 (en) * 2003-12-17 2005-06-23 Albert Boeckh Topical formulations comprising 1-N-arylpyrazole derivatives and amitraz
US20160278373A1 (en) * 2004-06-01 2016-09-29 Agscitech Inc. Biosurfactant compositions and methods for providing plant nutrients
US20200306220A1 (en) * 2017-11-23 2020-10-01 Ceva Sante Animale Composition for treating parasites infestations
WO2021041301A1 (fr) * 2019-08-24 2021-03-04 Flagship Pioneering Innovations Vi, Llc Modification de paquets de messagerie végétale avec des lipides chargés

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